Preparation of amidoxime-based PE/PP fibers for extraction of uranium from aqueous solution
文献类型：期刊论文
| 作者 | Xu, X; Ding, XJ; Ao, JX; Li, R; Xing, Z; Liu, XY; Guo, XJ; Wu, GZ; Ma, HJ; Zhao, XY |
| 刊名 | NUCLEAR SCIENCE AND TECHNIQUES
 |
| 出版日期 | 2019 |
| 卷号 | 30期号:2页码:— |
| 关键词 | POLYACRYLONITRILE FIBERS ADSORPTION PERFORMANCE SIMULATED SEAWATER ADSORBENT IONS SORPTION URANYL RECOVERY ELUTION SEPARATION |
| ISSN号 | 1001-8042 |
| DOI | 10.1007/s41365-019-0543-0 |
| 文献子类 | 期刊论文 |
| 英文摘要 | A novel amidoxime-based fibrous adsorbent, denoted as PE/PP-g-(PAAc-co-PAO), was prepared by pre-irradiation grafting of acrylic acid and acrylonitrile onto polyethylene-coated polypropylene skin-core (PE/PP) fibers using Co-60 gamma-ray irradiation, followed by amidoximation. The original and modified PE/PP fibers were characterized by a series of characterization methods to demonstrate the attachment of amidoxime groups onto the PE/PP fibers. Breaking strength tests confirmed that the fibrous adsorbent could maintain good mechanical properties. The adsorption capacity of the PE/PP-g-(PAAc-co-PAO) fibers was investigated in simulated seawater with an initial uranium concentration of 330 mu g/L. The uranium adsorption capacity was 2.27 mg/g-adsorbent after 24 h in simulated seawater, and the equilibrium data were well described by the Freundlich isotherm model. The PE/PP-g-( PAAc-co-PAO) adsorbent exhibited good regeneration and recyclability during five adsorption-desorption cycles. The adsorption test was also performed in simulated radioactive effluents with uranium concentrations of 10 and 100 mu g/L. The effect of the pH value on the adsorption capacity was also studied. At a very low initial concentration 10 mu g/L solution, the PE/PP-g-(PAAc-co-PAO) fiber could remove as much as 93.0% of the uranium, and up to 71.2% of the uranium in the simulated radioactive effluent. These results indicated that the PE/PP-g-(PAAc-co-PAO) adsorbent could be used in radioactive effluents over a wide range of pH values. Therefore, the PE/PP-g-(PAAc-co-PAO) fibers, with their high uranium selectivity, good regeneration and recyclability, good mechanical properties, and low cost, are promising adsorbents for extracting uranium from aqueous solutions. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31766]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Changzhou Univ, Sch Petrochem Engn, Changzhou 213164, Peoples R China; 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, X,Ding, XJ,Ao, JX,et al. Preparation of amidoxime-based PE/PP fibers for extraction of uranium from aqueous solution[J]. NUCLEAR SCIENCE AND TECHNIQUES,2019,30(2):—. |
| APA | Xu, X.,Ding, XJ.,Ao, JX.,Li, R.,Xing, Z.,...&Zhao, XY.(2019).Preparation of amidoxime-based PE/PP fibers for extraction of uranium from aqueous solution.NUCLEAR SCIENCE AND TECHNIQUES,30(2),—. |
| MLA | Xu, X,et al."Preparation of amidoxime-based PE/PP fibers for extraction of uranium from aqueous solution".NUCLEAR SCIENCE AND TECHNIQUES 30.2(2019):—. |
入库方式： OAI收割
来源：上海应用物理研究所
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